In Pictures: New and improved in iOS 7 and Xcode 5

Xcode gauges
Gauges are lightweight processes that monitor your app's use of CPU, memory, graphics, and other resources. The gauges appear at the left. Clicking on one brings up a more detailed view at the right. If you need a more thorough analysis of the problem, you can click on the "Profile in instruments" button, which launches more powerful analytic tools that take a deeper look at the code as it runs. However, they are much more intrusive than the gauges.

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